You are developing a Windows Presentation Foundation (WPF) application. During unit testing you identify several bottlenecks by using Windows Task Manager and Windows performance Monitor.
You need to recommend a system test strategy that will meet the following requirements:

– identify major application workloads
– identify the functions of the application that are most impacted

Which testing strategy should you recommend?

A.
Usability testing

B.
Security testing

C.
Stability testing

D.
Scalability testing